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2 Journal of Machine Engineering

2 2020

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Positioning error correction of autonomously movable robot arm

Vaher Kristo, Otto Tauno, Riives Jüri

Journal of Machine Engineering

2020

Vol. 20, No. 4

152--160

Industrial robots are mainly used stationarily in one working position. SMEs often find themselves in situations where robots don’t have enough work to do, and because in general, robots cannot be easily moved to another position, the efficiency of robots will decrease. This study provides a solution for this issue. The solution can be found in a robot work cell where a mobile robot deals with robot arm transportation. However, since the mobile robot is not precise enough in positioning, machine vision is used to overcome this problem, which helps the robot to position itself accurately in relation to the work object. The solution has been developed and tested successfully at an Industry 4.0 testbed.

Optimisation of decision-making process in industrial robot selection

Kangru Tavo, Riives Jüri, Otto Tauno, Kuts Vladimir, Moor Madis

Journal of Machine Engineering

2020

Vol. 20, No. 1

70--81

The successful selection process of industrial robots (IRs) for today’s Cyber-Physical Systems is an important topic and there are different possibilities to solve the task. The primary task is to estimate the existing IR selection systems according to the suitability analysis and to highlight the main positive features and problematic areas. The objective of the reverse task is to carry out the sensitivity analysis of the existing robot-based manufacturing systems. The matching of these two approaches helps decision makers to develop the main principles of IR selection in today’s multidimensional and fast-changing economic world.